Home / 1,856.52-2,782.96-623.30

Finding the Fourth Proportional to 1,856.52, 2,782.96 and 623.30

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Solution

The fourth proportional to 1,856.52, 2,782.96 and 623.30 is: 934.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.52 : 2,782.96 = 623.30 : x
  2. Step 2: Convert to fraction form
    1,856.52/2,782.96 = 623.30/x
  3. Step 3: Cross multiply
    1,856.52x = 2,782.96 × 623.30
  4. Step 4: Simplify right side
    1,856.52x = 1,734,603.49
  5. Step 5: Solve for x
    x = 1,734,603.49/1,856.52
  6. Step 6: Final answer
    x = 934.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.